23.6.2.2 Configurable Reset Values

After a Power-on Reset, some registers will be loaded with initial values from the NVM User Row.

This includes the following bits and bit groups:

• Enable bit in the Control A register, CTRLA.ENABLE
• Always-On bit in the Control A register, CTRLA.ALWAYSON
• Watchdog Timer Windows Mode Enable bit in the Control A register, CTRLA.WEN
• Watchdog Timer Windows Mode Time-Out Period bits in the Configuration register, CONFIG.WINDOW
• Time-Out Period bits in the Configuration register, CONFIG.PER
• Early Warning Interrupt Time Offset bits in the Early Warning Interrupt Control register, EWCTRL.EWOFFSET